mmc: ushc: Return proper error code for ushc_probe()

Improves error handling in the ushc driver.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
1 file changed